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21a1d2c4 NM |
1 | // Copyright (C) 2003 Free Software Foundation, Inc. |
2 | // | |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 2, or (at your option) | |
7 | // any later version. | |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING. If not, write to the Free | |
16 | // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
17 | // USA. | |
18 | ||
19 | // 27.5.2.2.3 Get area | |
20 | ||
21 | #include <fstream> | |
22 | #include <testsuite_hooks.h> | |
23 | ||
24 | class Derived_fbuf : public std::filebuf | |
25 | { | |
26 | public: | |
27 | const char_type* pub_egptr() const | |
28 | { return egptr(); } | |
29 | ||
30 | const char_type* pub_gptr() const | |
31 | { return gptr(); } | |
32 | }; | |
33 | ||
34 | // libstdc++/9701 (in_avail) | |
35 | void test01() | |
36 | { | |
37 | using namespace std; | |
11f10e6b | 38 | bool test __attribute__((unused)) = true; |
21a1d2c4 NM |
39 | const char* name = "tmp_file1"; |
40 | ||
41 | Derived_fbuf df2; | |
42 | df2.open(name, ios_base::in | ios_base::out | ios_base::trunc); | |
43 | ||
44 | df2.sputn("Comomoc", 7); | |
45 | ||
46 | df2.pubseekoff(0, ios_base::beg); | |
47 | df2.sbumpc(); | |
48 | df2.sputbackc('t'); | |
49 | ||
50 | VERIFY( df2.pub_gptr() < df2.pub_egptr() ); | |
51 | VERIFY( df2.in_avail() == df2.pub_egptr() - df2.pub_gptr() ); | |
52 | } | |
53 | ||
54 | int | |
55 | main() | |
56 | { | |
57 | test01(); | |
58 | return 0; | |
59 | } |